Finding the Fourth Proportional to 15,625,324.74, 21,562,945.08 and 8,656,455.18
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Solution
The fourth proportional to 15,625,324.74, 21,562,945.08 and 8,656,455.18 is: 11,945,906.45
Step by Step Solution
- Step 1: Write the proportion equation
15,625,324.74 : 21,562,945.08 = 8,656,455.18 : x - Step 2: Convert to fraction form
15,625,324.74/21,562,945.08 = 8,656,455.18/x - Step 3: Cross multiply
15,625,324.74x = 21,562,945.08 × 8,656,455.18 - Step 4: Simplify right side
15,625,324.74x = 186,658,667,633,821.50 - Step 5: Solve for x
x = 186,658,667,633,821.50/15,625,324.74 - Step 6: Final answer
x = 11,945,906.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.